The FSA Orbit X is a threadless headset which has a classic shape with modern styling, making it a great choice for high end road bikes. The headset is equipped with forged and CNC-machined 6061/T6 aluminum cups and features patented bearing alignment for increased durability and performance. Inside are two 36 degrees angular cartridge bearings which are durable and easy to replace when they eventually wear out.

FSA's driving force is well captured in their name, Full Speed Ahead. With a manufacturing base in Taiwan and offices in the USA and Europe, FSA stays ahead of the competition through design, innovation and manufacturing expertise. Offering solutions for speed across a broad range of bicycle components. These include headsets to wheels, cranksets and bottom brackets, Vision Time Trial and Triathlon bars to handlebars and stems.

Headsets

FSA is the world’s leading headset manufacturer. Headsets are a core product of FSA. We understand the multiple dimensions and exacting requirements a headset must fulfil. With this in mind, FSA produces a wide range and assortment of headsets to fit any and all frame standards at competitive pricing, which makes FSA a valued partner to many frameset and bicycle manufacturers.

To help you find the information you’re looking for, here is a brief description of the different types of headsets FSA has to offer:

Traditional Threadless

Traditional threadless headsets are available to fit 1” and 1 1/8” steerer tubes. Traditional headsets are pressed into the headtube and have two external cups that house the bearings.

Internal / ZS Style

Internal headsets are available for 1 1/8”, 1 ¼”, 1.5”, and tapered steerer tubes. Internal headsets are sometimes referred to as Zero Stack (ZS) because both cup and bearing is housed entirely inside the headtube.

Integrated

Integrated Headsets are similar to Internal with the exception that the bearing does not rest inside a bearing cup. The bearing is set directly into the headtube and usually does not require special press tool to install. There are a few types of Integrated headsets, sometimes referred to as Cane Creek Standard, Campy Standard, or TH standard. It is important to measure the inside diameter of the headtube correctly in order to be certain the correct integrated headset is being used in the frame.

OnePointFive

One point five headsets fit steerer tubes that are 1.5” in diameter. There are models that are Traditional threadless or Internal. The internal diameter of the headtube determines if the frame is compatible with traditional or internal 1.5” headsets.

Tapered Headsets

Tapered headsets are a combination of the other styles. Usually a tapered steerer tube will have a 1 ¼” or 1.5” lower diameter, and a 1 1/8” upper diameter. The headsets for these frames & forks can be any combination of traditional, internal, or integrated headsets. It is very important to accurately measure the inner diameter of the headtube top and bottom to narrow down the headset model needed. In some cases, Tapered headtubes can be used with a straight 1 1/8” steerer tube if a reducing headset race is used.

Threaded Headsets

Threaded headsets are for use with 1″ threaded steerers and are a traditional headset. Threaded Headsets are pressed into the head tube and have two external cups that house caged balls or bearings, and a top locknut to fix the headset.

Angle Headsets

An Angle headsets is a new internal headset model which gives the rider the option to adjust their headset angle. It works only with 1 1/8” fork steerers but it is usable on both straight or tapered headset tube. The angle variation is made by the bearings position in the cup. The bearings adjust to different angles and headtube lengths due to the spherical contact surface between bearing and its seat.